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OXCB950-TQAG Datasheet(PDF) 10 Page - Oxford Semiconductor |
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OXCB950-TQAG Datasheet(HTML) 10 Page - Oxford Semiconductor |
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10 / 67 page  DS-0033 Sep 05 External-Free Release Page 10 OXCB950 OXFORD SEMICONDUCTOR LTD. Multi-purpose & External interrupt pins Dir2 Name Description 26 27 T_I/O T_I/O MIO[0] MIO[1] Multi-purpose I/O pins. Can be driven high or low, or be used to invoke cardbus/PCI interrupts, and powerdown, wakeup requests. EEPROM pins 28 O EE_CK EEPROM clock 29 O EE_CS EEPROM active-high Chip Select 31 IU EE_DI EEPROM data in (to be connected to the EEPROM DO pin). When the optional serial EEPROM is connected, this pin should be pulled up using an external 1-10k resistor. When the EEPROM is not used, this external pull-up is not required (internal pull-up is sufficient). 30 O EE_DO EEPROM data out. (to be connected to the EEPROM DI pin) Miscellaneous pins 34 ID TEST0 Test Pin 0. Should be held low at all times. 33 ID TEST1 Test Pin 1. Should be held low at all times Power and ground3 14, 63, 89 V VDD3I_CB Supplies power to the pre-drive area of the dual mode cardbus/pci IO buffers. 7, 21, 56, 71, 81, 91 V VDD3OP_CB Supplies power to the output drive of the dual mode cardbus/pci IO buffers. 38, 39 V VDDIP Supplies power to the core-logic and pre-drive area of the standard IO buffers. 41, V VDDO Suppiles power to the output drive of standard IO buffers. 13, 62, 87 G VSSI_CB Supplies ground to the pre-drive area of the dual mode cardbus/pci IO buffers. 2, 6, 12, 20, 55, 64, 65, 70, 76, 82, 90, 92, 97 G VSSOP_CB Supplies ground to the output drive of the dual mode cardbus/pci IO buffers. 35 G VSSIP Supplies gnd to the core-logic and pre-drive area of the standard IO buffers. 40, 50 G VSSO Supplies gnd to the output drive of standard IO buffers. Table: Pin Descriptions Note 1: For cardbus applications, the pin z_frame requires a pull-up (4k7) on the board. See PC Card Standard 7.0/7.1, section 5.3.3.3.3 “pull-up resistor requirements”. Note 2: Direction key: I 3.3v Input, TTL compatible ID 3.3v Input with pull-down, TTL compatible IU 3.3v Input with pull-up, TTL compatible O 3.3v Output, TTL compatible T_O 5.0v tolerant TTL output T_I 5.0v tolerant TTL input T_I/O 5.0v tolerant TTL Bi-directional C/P_I Cardbus/PCI compatible input C/P_O Cardbus/PCI compatible output C/P_I/O Cardbus/PCI compatible bi-directional C/P_OD Cardbus/PCI compatible open drain G Ground V 3.3V power |
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